T(n,k)=Number of length n+2 0..k arrays with no three equal elements in a row and new values 0..k introduced in 0..k order.

A242472

T(n,k)=Number of length n+2 0..k arrays with no three equal elements in a row and new values 0..k introduced in 0..k order.

Terms

    a(0) =3a(1) =4a(2) =5a(3) =4a(4) =11a(5) =8a(6) =4a(7) =12a(8) =30a(9) =13a(10) =4a(11) =12a(12) =40a(13) =82a(14) =21a(15) =4a(16) =12a(17) =41a(18) =143a(19) =224a(20) =34a(21) =4a(22) =12a(23) =41a(24) =158a(25) =528a(26) =612a(27) =55a(28) =4a(29) =12

External references